Synonyms and related words :
absolute, apodictic, apparent, bound, certain, clean-cut, clear, clear and distinct, clear as crystal, clear as day, clear-cut, coherent, conclusive, connected, consistent, crisp, crystal-clear, crystalline, decisive, defined, definite, determinate, direct, distinct, evident, explicit, express, ineluctable, inevitable, limpid, loud and clear, lucid, luminous, manifest, monadal, monadic, necessary, obvious, one-piece, one-sided, palpable, patent, pellucid, perfectly sure, perspicuous, plain, positive, predestined, predetermined, simple, straightforward, sure, sure-enough, translucent, transparent, transpicuous, TRUE, unambiguous, unconfused, unequivocal, uniangulate, unibivalent, unibranchiate, unicameral, unicellular, unicuspid, unidentate, unidigitate, unidimensional, unidirectional, uniflorous, unifoliate, unifoliolate, unigenital, uniglobular, unilateral, unilinear, uniliteral, unilobed, unilobular, unimodular, unimolecular, uniocular, unipart, unipartite, unipolar, univalent, unmistakable, well-defined